Malicious PDF — malware analysis report

Static analysis result for SHA-256 159e0c91631c0b96…

MALICIOUS

PDF

43.8 KB Created: 2018-12-07 18:27:49 +03:00 Authoring application: Adobe Acrobat 6.02 (via Adobe Acrobat 6.02 Paper Capture Plug-in)
MD5: 9a557026fdf5760cd3b1916dbb051224 SHA-1: 7a455b2e417ab6af60c38ab7236af5b2461402c8 SHA-256: 159e0c91631c0b96e226aceb8edc43ec7cdc1de796c582fb9c6baaf8195ef352
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or distribute potentially malicious content hosted on the 'gorillawalker.com' domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8843

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.gorillawalker.com/gilbert-the-goofy-guppy-the-literacy-tower.pdf
    • http://www.gorillawalker.com/mountain-journal.pdf
    • http://www.gorillawalker.com/khuddaka-nikaya-i-the-seven-ancient-books-in-the-shorter.pdf
    • http://www.gorillawalker.com/pentecostes-thriller-de-la-serie-arkane-volume-1-spanish-edition.pdf
    • http://www.gorillawalker.com/the-reliability-of-the-gospel-tradition.pdf
    • http://www.gorillawalker.com/hong-kong-world-bibliographical-series.pdf
    • http://www.gorillawalker.com/enterprise-release-management-agile-delivery-of-a-strategic-change-portfolio.pdf
    • http://www.gorillawalker.com/writers-choice-grammar-workbook-12.pdf
    • http://www.gorillawalker.com/bug-bingo.pdf
    • http://www.gorillawalker.com/u-s-government-quickstudy-reference-guides-academic.pdf
    • http://www.gorillawalker.com/50-years-of-dissent-paperback.pdf
    • http://www.gorillawalker.com/the-revenants.pdf
    • http://www.gorillawalker.com/caribbean-history-for-csec-a-caribbean-examinations-study-guide.pdf
    • http://www.gorillawalker.com/tales-of-the-arabian-nights-the-complete-volume-the-book.pdf
    • http://www.gorillawalker.com/building-your-chambered-wood-surfboard-kindle-edition.pdf
    • http://www.gorillawalker.com/an-introduction-to-differential-equations-and-their-applications-dover-books.pdf
    • http://www.gorillawalker.com/golden-girls-forever.pdf
    • http://www.gorillawalker.com/the-5-big-lies-about-american-business-combating-smears-against.pdf
    • http://www.gorillawalker.com/science-fair-projects-about-the-properties-of-matter-using-the.pdf
    • http://www.gorillawalker.com/stages-of-self-dramatic-monologues-of-laforgue.pdf
    • http://www.gorillawalker.com/trauma-and-the-therapist-countertransference-and-vicarious-traumatization-in-psychotherapy.pdf
    • http://www.gorillawalker.com/introduction-to-critical-care-nursing-5th-edition.pdf
    • http://www.gorillawalker.com/angeles-en-la-nieve-spanish-edition-rocabolsillo-criminal.pdf
    • http://www.gorillawalker.com/modern-science-in-the-bible-amazing-scientific-truths-found-in.pdf
    • http://www.gorillawalker.com/friction-and-surface-finish.pdf
    • http://www.gorillawalker.com/parthia.pdf
    • http://www.gorillawalker.com/kanemochihonnnikyoutuushitekaitearushinnri-japanese-edition.pdf
    • http://www.gorillawalker.com/hyacinth-bucket-s-hectic-social-calendar.pdf
    • http://www.gorillawalker.com/help-was-that-a-career-limiting-move.pdf
    • http://www.gorillawalker.com/be-kind-to-your-mother-earth-as-original-play.pdf
    • http://www.gorillawalker.com/city-on-a-hill-the-gathering.pdf
    • http://www.gorillawalker.com/great-british-watercolors-from-the-paul-mellon-collection-at-the.pdf
    • http://www.gorillawalker.com/jigsaw-sudoku-3-200-puzzles.pdf
    • http://www.gorillawalker.com/carb-conscious-vegetarian-150-delicious-recipes-for-a-healthy-lifestyle.pdf
    • http://www.gorillawalker.com/reliability-statistics-h0601.pdf
    • http://www.gorillawalker.com/electrophysiological-disorders-of-the-heart-expert-consult-online-and-print.pdf
    • http://www.gorillawalker.com/morning-and-evening-classics-library-barbour-bargain.pdf
    • http://www.gorillawalker.com/does-living-in-rural-areas-make-a-difference-for-health.pdf
    • http://www.gorillawalker.com/grain-belly-wheat-brain-how-wheat-and-gluten-are-destroying.pdf
    • http://www.gorillawalker.com/koop-kooper-s-cocktail-nation-2-the-interviews.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

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